1. Humans and Ecology: What are we doing, what should we do, what can we do, and does it matter?

2. Why are species going extinct?

3. The complex molecules that comprise organisms are based on carbon

4. Fig 55.14 Carbon cycle

5. Solar energy: incoming and outgoing http://www.esr.org/outreach/climate_change/basics/basics.html

7. CO 2 and other greenhouse gases keep heat from radiating back into space http://www.esr.org/outreach/climate_change/basics/basics.html

8. CO 2 levels in Hawaii and average global temp. Fig 55.21

9. Aren't these temperature increases just because of increased urbanization? Fig 55.21

10. Aren't these temperature increases just because of increased urbanization? http://science.nasa.gov/headlines/y2000/ast15nov_1.htm

11. http://www.cabq.gov/albuquerquegreen/images/urban_heat_island.jpg/image

12. http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=1419 A poorly sited temperature sensor in Marysville, California. The sensor is situation right next to an asphalt parking lot, instead in the middle of a grassy field, as it is supposed to be. The sensor is also adjacent to several several air conditioners that blow their exhaust into the air nearby.

13. http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=1419 Annual average maximum and minimum unadjusted temperature change calculated using (c) maximum and (d) minimum temperatures from good and poor exposure sites (Menne 2010).

14. http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=1419 Poor sites showed a cooler maximum temperature compared to good sites.

15. http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=1419 For minimum temperature, the poor sites were slightly warmer.

16. http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=1419 The net effect was a cool bias in poorly sited stations

17. http://www.esr.org/outreach/climate_change/basics/basics.html

18. Gases trapped in ice core bubbles can tell us about past climate conditions.

19. http://www.esr.org/outreach/climate_change/basics/basics.html

21. Recent increases in global temperature have reversed a slight cooling trend

22. Vikings in Greenland in the 1200- 1400’s

24. As the climate cooled, the Vikings were forced to abandon their outposts

25. 370

26. Effects of global warming are already visible http://www.worldviewofglobalwarming.org/pages/glaciers. html

27. ~500 m people ~300 m people ~2.5 b people Relative contributions to Global Warming

28. Humans and Ecology: What are we doing, what should we do, what can we do, and does it matter?